Jacob Chase Returns to Blumhouse Atomic Monster for “Sleepover,” Universal Sets Oct. 8, 2027 Theatrical Release

Universal has set a fall 2027 release date for “Sleepover,” a new large-scale horror film from Blumhouse Atomic Monster that will reunite the studio with director Jacob Chase, according to Deadline. The outlet reports that the movie is scheduled to open in theaters on Oct. 8, 2027, with Universal holding the date for an untitled Blumhouse Atomic Monster project before the “Sleepover” title and creative pairing were announced.

The news marks another chapter in Blumhouse Atomic Monster’s ongoing push for theatrical horror at a time when the genre continues to anchor major studio release slates. Deadline frames the project as continuing the working relationship with Chase, whose most recent entry in the “Insidious” franchise is “Insidious: Out of the Further,” which he directed.

Deadline’s report places “Sleepover” within a broader Universal slate for Blumhouse Atomic Monster releases. It says Universal already had the Oct. 8, 2027 calendar date reserved for an untitled Blumhouse Atomic Monster film, and that the “Sleepover” announcement clarifies that the reserved slot will now be used for the new project with Chase attached.

The publication does not include additional production details in its report, such as filming start dates, cast, or the specific storyline behind “Sleepover.” It also does not identify writer(s), budget, or the circumstances that led to the project being scheduled for the Oct. 8 window rather than an earlier fall or holiday slot.

For audiences, a release on Oct. 8 positions “Sleepover” to land in the early-to-mid autumn theater calendar, when horror releases typically compete for attention ahead of late-October and Halloween-adjacent scheduling. The timing can be important for exhibitors, since it affects how theaters plan screen commitments, marketing calendars, and local programming around genre demand.

For the studios and investors behind Blumhouse Atomic Monster, the deal represents continued commitment to theatrical distribution for a property under a brand built to deliver hit-capable genre fare. Reserving a major date with a named director also indicates that Universal and Blumhouse Atomic Monster intend to maintain a steady flow of genre releases in the coming years rather than concentrating only on incremental additions to existing franchises.

No further material terms were described in the Deadline report, including whether additional creative roles were announced at the same time or whether the film’s title is final. Deadline also does not specify whether “Sleepover” will be marketed as part of the “Insidious” universe or as a separate original horror concept.

As of publication, “Sleepover” remains an announced theatrical release with key elements including director Jacob Chase, Blumhouse Atomic Monster, Universal distribution, and an Oct. 8, 2027 premiere date. Additional updates on cast, production timeline, and creative team typically follow once studios confirm casting and begin formal preproduction steps.